Analysis of information sources in references of the Wikipedia article "सूर्य" in Hindi language version.
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उपेक्षा की गयी (मदद).|date=
में तिथि प्राचल का मान जाँचें (मदद); |journal=
में बाहरी कड़ी (मदद)NASA maintained contact with Pioneer 9 until May 1983
NASA maintained contact with Pioneer 9 until May 1983